VULNERABILITY INTELLIGENCE

CVE-2016-9920

CVSS score7.5 HIGH
EPSS probability5.60%
CISA KEVNot currently listed
Published2016-12-08
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.

Weakness classification

  • CWE-284: Improper Access Control

Primary references